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Wednesday, April 20 • 11:30am - 12:20pm
Solving the Linux Storage Scalability Bottlenecks - Jens Axboe, Facebook

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Flash devices introduced a sudden shift in the performance profile of direct attached storage. With IOPS rates orders of magnitude higher than rotating storage, it became clear that Linux needed a re-design of its storage stack to properly support and get the most out of these new devices.

This talk will detail the architecture of blk-mq, the redesign of the core of the Linux storage stack, and the later set of changes made to adapt the SCSI stack to this new queuing model. Early results of running Facebook infrastructure production workloads on top of the new stack will also be shared.

avatar for Jens Axboe

Jens Axboe

Jens Axboe is Software Engineer at Facebook, formerly a Fellow at Fusion-io, and Consulting member of staff at Oracle. He also serves as the Linux block layer maintainer. Jens has worked on all things Linux IO related, such as data writeback, IO scheduling, SATA/SCSI, and others. Most recently his interests have been centered around making super fast flash based devices work and scale well in the kernel.

Wednesday April 20, 2016 11:30am - 12:20pm
State Ballroom B

Attendees (27)